1998Flipped from RepublicanFinal resultsIncumbent defeated
1998 election for Oklahoma House District 40
Oklahoma House of Representatives · Oklahoma
John Sellers (D) won with 50.4% of the vote, defeating Mike Oneal (R) by 0.8 points, a seat Republicans won last time.
John SellersDemocrat · winner
50.4%3,374
Mike OnealRepublican · incumbent
49.6%3,318
6,692 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1998
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET